/Engine/Source/Runtime/MeshDescription/Public/MeshDescription.h
Deletes a polygon from the mesh
void DeletePolygon ( const [FPolygonID](API\Runtime\MeshDescription\FPolygonID) PolygonID, [TArray](API\Runtime\Core\Containers\TArray)< [FEdgeID](API\Runtime\MeshDescription\FEdgeID) > * InOutOrphanedEdgesPtr, [TArray](API\Runtime\Core\Containers\TArray)< [FVertexInstanceID](API\Runtime\MeshDescription\FVertexInstanceID) > * InOutOrphanedVertexInstancesPtr, [TArray](API\Runtime\Core\Containers\TArray)< [FPolygonGroupID](API\Runtime\MeshDescription\FPolygonGroupID) > * InOutOrphanedPolygonGroupsPtr )